Home / 21,207.73-31,813.27-5,625.36

Finding the Fourth Proportional to 21,207.73, 31,813.27 and 5,625.36

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Solution

The fourth proportional to 21,207.73, 31,813.27 and 5,625.36 is: 8,438.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.73 : 31,813.27 = 5,625.36 : x
  2. Step 2: Convert to fraction form
    21,207.73/31,813.27 = 5,625.36/x
  3. Step 3: Cross multiply
    21,207.73x = 31,813.27 × 5,625.36
  4. Step 4: Simplify right side
    21,207.73x = 178,961,096.53
  5. Step 5: Solve for x
    x = 178,961,096.53/21,207.73
  6. Step 6: Final answer
    x = 8,438.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.